Bug#307261: kmail: IMAP email is lost when using spam filter

[Steve Freitas <steve@newportit.com>]

Package: kmail
Version: 4:3.3.2-3
Severity: critical
Justification: causes serious data loss


On my IMAP server, I created a subfolder under INBOX titled "Spam". I
then started the anti-spam wizard, in which I told it to utilize the
spamassassin installation it found on my system. I told it "Classify
messages using the anti-spam tools", and "Move detected spam messages to
the selected folder." I selected the newly created "Spam" folder on my
IMAP server. I then selected a day's worth of email and did Apply
Filters, which caused it all to disappear. It was purged from the IMAP
server, and as far as I can tell, it's just gone. I've checked all local
and IMAP folders with no luck.

I've done no configuration of my system's spamassassin installation.

-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.9-stu1
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages kmail depends on:
ii  kdelibs4             4:3.3.2-5           KDE core libraries
ii  libc6                2.3.2.ds1-21        GNU C Library: Shared libraries an
ii  libgcc1              1:3.4.3-12          GCC support library
ii  libice6              4.3.0.dfsg.1-12.0.1 Inter-Client Exchange library
ii  libkcal2a            4:3.3.2-3           KDE calendaring library
ii  libkdenetwork2       4:3.3.2-3           KDE Network library
ii  libkdepim1           4:3.3.2-3           KDE PIM library
ii  libkleopatra0a       4:3.3.2-3           KDE GnuPG interface libraries
ii  libkpimidentities1   4:3.3.2-3           KDE PIM user identity information 
ii  libksieve0           4:3.3.2-3           KDE mail/news message filtering li
ii  libmimelib1a         4:3.3.2-3           KDE mime library
ii  libpng12-0           1.2.8rel-1          PNG library - runtime
ii  libqt3c102-mt        3:3.3.4-3           Qt GUI Library (Threaded runtime v
ii  libsm6               4.3.0.dfsg.1-12.0.1 X Window System Session Management
ii  libstdc++5           1:3.3.5-12          The GNU Standard C++ Library v3
ii  libx11-6             4.3.0.dfsg.1-12.0.1 X Window System protocol client li
ii  libxext6             4.3.0.dfsg.1-12.0.1 X Window System miscellaneous exte
ii  perl                 5.8.4-8             Larry Wall's Practical Extraction 
ii  xlibs                4.3.0.dfsg.1-12     X Keyboard Extension (XKB) configu
ii  zlib1g               1:1.2.2-4           compression library - runtime

-- no debconf information